Android Tutorial for Beginners 1 # Introduction and Installing and Configuring Java JDK

Introduction

This tutorial aims to guide beginners through the installation and configuration of the Java Development Kit (JDK) as part of starting with Android development. By following these steps, you will set a solid foundation for creating Android applications using Android Studio.

Step 1: Download Java JDK

1. Visit the Oracle JDK Download Page

   • Go to the official Oracle website to download the Java JDK. You can find the latest version at Oracle JDK Downloads (ensure to select the appropriate version for your operating system).

2. Select the JDK Version

   • Review the available versions and choose the one that suits your needs. For beginners, the latest stable version is recommended.

3. Accept the License Agreement

   • Before downloading, you must accept the Oracle license agreement.

4. Download the Installer

   • Click on the download link for your operating system (Windows, macOS, or Linux).

Step 2: Install Java JDK

1. Run the Installer

   • Locate the downloaded file and double-click it to start the installation process.

2. Follow the Installation Wizard

   • Click through the installation wizard. It usually involves:
     • Selecting the installation directory (default is typically fine).
     • Choosing the components to install (select all recommended options).

3. Complete the Installation

   • Once the installation is finished, you may be prompted to close the wizard.

Step 3: Set Environment Variables

1. Open System Properties

   • Right-click on "This PC" or "My Computer" and select "Properties."
   • Click on "Advanced system settings."

2. Access Environment Variables

   • In the System Properties window, click on the "Environment Variables" button.

3. Add JAVA_HOME Variable

   • Under the "System variables" section, click "New."
   • For the variable name, enter JAVA_HOME.
   • For the variable value, enter the path to your JDK installation, e.g., C:\Program Files\Java\jdk-11.0.x.

4. Update the Path Variable

   • In the same "System variables" section, find the Path variable and select it.
   • Click "Edit," then "New," and add %JAVA_HOME%\bin.

5. Save Changes

   • Click OK on all dialog boxes to save your changes.

Step 4: Verify Installation

1. Open Command Prompt

   • Press Windows + R, type cmd, and hit Enter.

2. Check Java Version

   • Type the following command and press Enter:

     java -version
     

   • You should see the installed version of Java displayed.

3. Check JDK Installation

   • Type the following command to verify the JDK installation:

     javac -version
     

   • This should also display the JDK version number.

Step 5: Install Android Studio

1. Download Android Studio

   • Visit the Android Studio download page and download the installer for your operating system.

2. Run the Installer

   • Open the downloaded file and follow the installation prompts.

3. Configure Android Studio

   • Upon launch, follow the setup wizard to install any required SDK components.

Conclusion

In this tutorial, you successfully installed and configured the Java JDK, set up environment variables, and verified your installation. You are now ready to start developing Android applications using Android Studio. Consider exploring the Android Studio interface and its capabilities as your next step in learning Android development. Happy coding!